#3390CB#3390CB

#3390CB is a light, vivid cyan. Relative luminance 0.250; OKLCH L 62.6% C 0.123 H 241.0°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#3390CB
RGB	rgb(51, 144, 203)
HSL	hsl(203, 60%, 50%)
HSV	hsv(203, 75%, 80%)
CMYK	cmyk(74.9%, 29.1%, 0%, 20.4%)
CIE-LAB	lab(57.04, -7.29, -38.17)
CIE-LCH	lch(57.04, 38.86, 259.19°)
OKLab	oklab(62.59% -0.0598 -0.108)
OKLCH	oklch(62.59% 0.123 241)
XYZ	xyz(22.1138, 24.9595, 60.1405)
Luminance	0.2496 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3390CB #CB6E33

analogous

#33CBBA #3390CB #3344CB

triadic

#3390CB #CB3390 #90CB33

tetradic

#3390CB #BA33CB #CB6E33 #44CB33

square

#3390CB #BA33CB #CB6E33 #44CB33

split-complementary

#3390CB #CB3344 #CBBA33

monochromatic

#1A4B69 #276D9A #3390CB #63ABD8 #94C5E4

Accessibility & contrast

On white

3.50

#3390CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#3390CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3390CB

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3390CB	#FFFFFF	#000000	##000000
##3390CB	1.00	3.50	5.99	5.99
#FFFFFF	3.50	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7491CE

Deuteranopia (green-blind)

#6083CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3390cb;
/* rgb */ color: rgb(51, 144, 203);
/* oklch */ color: oklch(62.6% 0.123 241.0);

Tailwind

colors: {
  custom: {
    50: '#7fb0db',
    500: '#3390cb',
    950: '#000000',
  },
}

SCSS

$custom: #3390cb;
$custom-light: #7fb0db;
$custom-dark: #000000;

JSON

{
  "hex": "#3390cb",
  "rgb": {
    "r": 51,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 203.289,
    "s": 59.843,
    "l": 49.804
  },
  "oklch": {
    "l": 0.62586,
    "c": 0.12344,
    "h": 241
  },
  "luminance": 0.24962
}

Semantic roles & 50–950 ramp

primary

#3390CB

secondary

#CFA58B

accent

#8245E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3390CB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →